Question 29 · LEK · Heart rhythm analysis
Which of the following may be observed in the ECG of a patient with sudden cardiac arrest and normally working artificial ventricular pacemaker?
1) asystole without stimulation artifacts;
2) ventricular fibrillation without stimulation artifacts;
3) ventricular fibrillation and stimulation artifacts;
4) asystole and stimulation artifacts;
5) ventricular fibrillation and transient stimulation artifacts.
The correct answer is:
2) ventricular fibrillation without stimulation artifacts;
3) ventricular fibrillation and stimulation artifacts;
4) asystole and stimulation artifacts;
5) ventricular fibrillation and transient stimulation artifacts.
The correct answer is:
- A. all the above.
- B. 2,3,4,5.
- C. 2,3.
- D. 2,4.
- E. 1,2.
Hint
A properly working pacemaker senses intrinsic activity and paces when none is detected; ask which ECG picture would mean it had failed.
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